Pagination Polish

[avaleske]

Some fixes for the paginator:

• Add number of pages to the paginator, so it shows "Page X of Y"
• Next / Prev buttons are at the edges of the page on desktop, instead of at the edges of listing column container
• Pagination maybe? should be sticky if multiple pages on desktop?

[anders-schneider]

One more thing I discovered: when there are no items, the pagination bar doesn't look good:

(I got there by (a) logging into the partner portal, (b) clicking on a listing, (c) appending "/flags" to the url)

An idea: just get rid of the "page x of y" (but keep the "(0 total listings)")

[anders-schneider]

The last thing in this ticket: should the pagination bar be sticky on desktop view? I experimented with it (by just setting the sticky={true} param on the AgPagination component) and have a slight preference against it being sticky - it just "feels more natural" to me to have the "next / prev" at the bottom of the page. But I would love for someone else to have strong feelings in one direction or the other :)

I'll close this ticket, but invite anyone with pro-sticky-pagination-bar feelings to reopen (it'd be easy to implement, since the "sticky" CSS class has already been defined).